refactor: use default caddy image

.concourse/pipeline.yml

@@ -12,6 +12,11 @@ resources:
   source:
     uri: https://code.icb4dc0.de/prskr/blog.git
 
+- name: caddy-image
+  type: docker-image
+  source:
+    repository: code.icb4dc0.de/prskr/ci-images/caddy
+
 - name: blog-chart
   type: helm
   source:
@@ -26,6 +31,8 @@ jobs:
   plan: 
     - get: blog.git
       trigger: true
+    - get: caddy-image
+      trigger: true
     - task: build-container-image
       file: blog.git/.concourse/tasks/image.yml
       input_mapping: {repo: blog.git}

Dockerfile

@@ -2,9 +2,7 @@ FROM docker.io/alpine:latest as builder
 
 WORKDIR /tmp
 
-RUN apk add -U --no-cache hugo curl tar jq && \
+RUN apk add -U --no-cache hugo
-    export CADDY_VERSION=$(curl https://api.github.com/repos/caddyserver/caddy/releases/latest | jq -r '.tag_name | (sub("v";""))') && \
-    curl -L https://github.com/caddyserver/caddy/releases/download/v${CADDY_VERSION}/caddy_${CADDY_VERSION}_linux_amd64.tar.gz | tar -xvz caddy
 
 WORKDIR /src
 
@@ -12,13 +10,6 @@ COPY . /src/
 
 RUN hugo --minify --environment production --config config.toml
 
-FROM gcr.io/distroless/static as final
+FROM code.icb4dc0.de/prskr/ci-images/caddy:latest as final
 
-COPY --from=builder /tmp/caddy /bin
+COPY --from=builder /src/public /usr/share/caddy
-COPY --from=builder /src/public /usr/share/caddy
-COPY deploy/caddy/caddy.json /etc/caddy/caddy.json
-
-EXPOSE 3000
-
-ENTRYPOINT [ "/bin/caddy" ]
-CMD [ "run", "--config=/etc/caddy/caddy.json" ]

deploy/caddy/caddy.json

@@ -1,41 +0,0 @@
-{
-    "apps": {
-        "http": {
-            "servers": {
-                "blog": {
-                    "listen": [
-                        ":3000"
-                    ],
-                    "metrics": {},
-                    "routes": [
-                        {
-                            "handle": [
-                                {
-                                    "handler": "file_server",
-                                    "root": "/usr/share/caddy",
-                                    "index_names": [
-                                        "index.html"
-                                    ]
-                                }
-                            ]
-                        }
-                    ]
-                },
-                "metrics" : {
-                    "listen": [
-                        ":9100"
-                    ],
-                    "routes": [
-                        {
-                            "handle": [
-                                {
-                                    "handler": "metrics"
-                                }
-                            ]
-                        }
-                    ]
-                }
-            }
-        }
-    }
-}